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heat riser
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  1. Wanted/WTB/Trade/Free Stuff. Cars & Car Parts Only
    I'm looking for an original large "tombstone" exhaust heat riser valve for a 55 265 V8. The one I need has a large weight that is rectangular with a curved top and part numbers plus "GM" stamped in the face of the weight. In later years the weight on the valve is more of a lollypop on a stick...
  2. Stock Chevy Discussion 55-56-57
    I removed the exhaust manifold to repair the heat riser valus and noticed that the heat transfer pipe that is used to draw air through the chamber to the car is broken inside the manifold. Any ideas how to repair it?:confused: I live in the south and I guess I could just plug it, but since...
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